.left{
	border: 1px solid black;
	width: 20%;
	height: 400px;
	float: left;
}

.right{
	float: left;
	border: 1px solid blue;
	width: 70%;
	height: 400px;
	margin-left: 20px;
}


.right_up{
	border: 1px solid black;
	width: 100%;
	height: 200px;
}
.right_down{
	border: 1px solid black;
	width: 100%;
	height: 350px;
}
.td{
	width: 100px;
	height: 50px;
}